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—— Precision Engineered Cooling Infrastructure ——

Stainless Steel
Liquid Cooling Systems

Stainless steel tube and pipe options for data center liquid cooling loops, CDU manifolds, and related thermal-management piping. Select the grade, dimensions, joining method, test requirements, and documentation for the specific system design.

Prepare the drawing, coolant details and agreed acceptance plan with our liquid-cooling tube RFQ and leak-test checklist.

316L

Low-Carbon Stainless Steel

Project-Specific

Design and Testing Criteria

Inspection

Leak Testing Available

—— Product Lines ——

Engineered for Zero Compromise

Components can be produced to project specifications with agreed material documentation, welding procedures, dimensional checks, and pressure or leak testing.

Liquid Cooling Tube

Coolant Distribution Manifolds

CNC-machined 316L stainless steel manifolds with orbital-welded branch connections. Available in custom port configurations with integrated isolation valves and flow balancing.

cooling tube

Primary Piping Assemblies

Pre-fabricated pipe spools with automated orbital welds, engineered for direct-to-rack and secondary loop deployments. Pressure tested to 1.5x operating pressure with helium leak detection.

—— Technical Specifications ——

Built to Exacting Standards

Every system undergoes rigorous quality control from raw material certification through final hydrostatic testing.

316L

Alloy

Low-carbon austenitic stainless steel

By Specification

Working Pressure

Maximum operating pressure rating

Ra 0.4

µm ID Surface Target

Electropolished internal finish

<10⁻⁹

mbar·l/s

Helium leak detection threshold
ParameterSpecificationReference / confirmation
Material GradeTP304 / TP304L / TP316 / TP316LASTM A249 / ASTM A269, as applicable
Size RangeOutside diameter: 1/4 in. to 12 in.Confirm against the project drawing; ASME B36.19M only where pipe dimensions are specified
Wall Thickness0.035 in. to 0.120 in.Confirm against the project drawing; ASME B36.19M only where pipe schedules apply
Tube ConstructionWelded or seamless, subject to the order specificationConfirm the applicable tube standard and manufacturing route
Surface TreatmentRFQ reference target: electropolished ID Ra ≤ 0.4 µm; confirm achievable finish by size and processASTM A269 has no universal Ra limit; ASTM A967/A967M covers chemical passivation if specified
Pressure TestASTM A269: each tube receives a hydrostatic or nondestructive electric test (100% of tubes)For assembled piping, confirm test pressure, hold time, and acceptance criteria under the applicable design code
Leak TestingASTM E499/E499M detector-probe method covers leaks ≥ 1 × 10⁻⁶ mbar·L/s; this is method scope, not an acceptance limitSelect the test method and allowable leak rate for the project; do not equate detector sensitivity with acceptance
CleanlinessBaseline after cleaning: no visible rust, scale, oil, chips, or loose particles; confirm by visual and agreed supplementary testsASTM A380/A380M lists visual, wipe, water-break, and free-iron checks; numerical particle/ionic limits require a project specification
Design LifeTo be assessed against system design and operating conditionsProject design criteria

Dimensions, testing, finish, and applicable standard editions should be confirmed for each project before quotation.

—— Deployment Environments ——

Purpose-Built for Critical Infrastructure

From hyperscale cloud facilities to exascale research installations, our systems are engineered to meet the most demanding thermal performance and reliability requirements.

Hyperscale Data Centers

Direct-to-chip and rear-door heat exchanger cooling distribution for high-density AI/ML training clusters and general-purpose compute.

Supercomputing & HPC

Ultra-pure water and mixed glycol systems for exascale and national laboratory installations requiring maximum thermal performance.

—— The Yaolong Advantage ——

Why Mission-Critical Operators Trust Us

Quality-Controlled Welds

Welded assemblies can be inspected using hydrostatic, leak, and other agreed testing methods according to project requirements.

Inspection Documentation

Material and inspection documentation is supplied according to the agreed purchase specification.

Technical Coordination

Our team supports specification review, production planning, and inspection documentation for international projects.

Scalable Manufacturing Support

Support for prototype quantities and scheduled production orders. Manufacturing scope and inspection plans are confirmed during quotation.

Engineering Review

Tube routing, connection details, fabrication requirements, and inspection criteria can be reviewed before production.

Production Planning

Lead times depend on dimensions, quantity, fabrication scope, testing, and documentation. Confirm the production schedule during quotation.

Get A Quote & Support

Send us your required standard, material grade, dimensions, quantity, and inspection requirements. Our tubing team will review manufacturing feasibility and prepare a project-specific quotation.

Contact Our Tubing Team

Get A Quote & Support

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